Screen for sun cures



Jan. 3, 1928.

L.GUSSALLI SCREEN FOR SUN CURES Filed June 22, 1926 Patented Jan. 3, 1928.;

LUIGI GUSSALLI, OF BRESCIA, ITALY.

SCREEN FOB SUN CURES.

Application filed J'une 22, ,1926,Serial 1T0. 117,812, and in Italy July 11, 1925.

It is difficult to employ, sun-cures at the .homes of sick persons, because it is almost always impossible to arrange a handy and cheap shelter which will afford free passage to the sun radiations while screening the patient from without. The present'invention relates to such a screen, which may conveniently be attached to curtains, folding screensor the like, and which allows the sun rays to pass freely through it while at the same time preventing the patient from being seen by people standing outside the shelter and screen.

Such a screen is characterized by a flat board of any desirable shape, made out of light stuff, as paper, wood, cork or similar material, pierced by a great number of aper tures divided from. each other by very thin walls and forming a sort of honeycomb.

In one of the forms of construction, considered as most appropriate, the screen is made out of undulated card-board strips whose width is equal to the thickness of the screen, wound up in a shallow spiral.

The accompanying drawing shows in Fig. 1 by way of example a perspective view of part of a screen according to the present invention and in Fig. 2 a pers ective view of part of a screen built up in t e manner suggested above; Fig. 3 is a side elevation, with parts in section, representing the screen as mounted on a tripod. i

In all screens built according to the present invention, a board having any convenient shape or dimensions, is pierced by a greatnumber of apertures 1, round, square. rectangular, hexagonal, triangular or of any other shape. Such apertures 1, which may be either perpendicular or inclined vto the faces of the board, but are always parallel to each other, are divided by very thin walls 2-2, 33, so as to form a general surface of least opacity in the direction in which it has to be crossed by the suns rays, that is,

' parallel to. the divisions of the apertures.

On the other hand, said apertures are smal enough and have such a depth 4 as to screen all lateral visibility in directions not parallel to the aperture divisions or to the suns rays. Screens of this type can be built in many ways, and in accordance with any of the wellknown methods; however, the method illustrated in Fig. 2 is now considered the'most satisfactory, as it secures perfectly parallel apertures in a rigid andlight screen which can be manufactured in a simple and cheap waywith strips of undulated cardboard of the kind usually employed for packing. This kind of undulated cardboard is obtained by gluing to a sheet 5 of light, flexible cardboard an undulated sheet 6 of the same ma terial; and in utilizing it, long strips thereof are cut perpendicularly to the waving 6 and rolled in a shallow spiral on a central core 7 (Fig. 3) of any convenient shape, after applying glue to the back of strips 5 or to the crests of the waving 6. A satisfactory screen can be constructed by using strips of waved cardboard 2 inches wide, having undulations 4 inch high and with inch pitch and building up a disc therefrom having a iameter of about 1 yard. The disc 8 thus produced is flat and circular if the central core 7 is a cylinder;-but it can be given any other desired shape by varying the shape of the core, and it is also possible to obtain discs whose faces are not flat, as, for instance, by using strips of vari- I able width. The disc can bereinforced at its" rim by a band or border 9 (Fig. 3) of fabric, wood, metal or other suitable material; and it can be mounted on a support 10 similar to a camera tripod, having a umversal joint 11 between it and the central spindle 12 whereon the core 7 is secured. Such spindle maybe provided with an extension or handle 13, which allows the screen to be turned easily toward the sun.

Having now described my invention what I claim as new and desire to secure by Letters Patent is:

1. A screen for sun-cures, comprising disc formed of alternatin undulated and plain strips of equal widt wound spirally upon themselves, with the crests of the undulations attached to the adjacent faces of the 1 plain strips; the spaces defined by the undulations being open from end to end to permit unobstructed passage of the sun rays therethrough and having a length which is greater 1 than the height of the undulations so as to cut ofl vision through said spaces excepting in directions parallel with the axes thereof. ing a length which is, appreciably greater 2. A screen for sun-cures, com rising :1 than their width so as to cut ofi' vision disc of honeycomb formation and o substanthrough them except in directions parallel 10 tial thickness having a multitude of aperwith their axes. 5 tures which open unobstructedly through its In testimony WhereofI affix my signature.

opposite faces to permit free passage of the sun rays therethrough; sai'd apertures haiv- LUIGI GUSSALLI. 

